Synthesis, crystal structure and ethylene polymerization activity of zirconium complexes bearing mono-Cp and tridentate Schiff base [ONO] ligands
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作者:
Chen, QH
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E China Univ Sci & Technol, Organomet Chem Lab, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Organomet Chem Lab, Shanghai 200237, Peoples R China
Chen, QH
[1
]
Huang, JL
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E China Univ Sci & Technol, Organomet Chem Lab, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Organomet Chem Lab, Shanghai 200237, Peoples R China
Huang, JL
[1
]
Yu, J
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E China Univ Sci & Technol, Organomet Chem Lab, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Organomet Chem Lab, Shanghai 200237, Peoples R China
Yu, J
[1
]
机构:
[1] E China Univ Sci & Technol, Organomet Chem Lab, Shanghai 200237, Peoples R China
A novel zirconium complex I bearing mono-Cp and tridentate Schiff base [ONO] ligand is synthesized by the reaction of CpZrCl3 center dot DME with lithium salt of Schiff base ligand. The molecular structure of complex 1 is determined by X-ray single crystal diffraction. A nine-membered zirconoxacycle complex 2 is obtained by an intramolecular elimination of CH3Cl from complex 1. When activated by excess methylaluminoxane (Al/Zr = 2000:1), complexes I and 2 exhibit high thermal stability and high catalytic activities for ethylene polymerization [1, 769 kg PE/(mol Zr center dot h); 2, 272 kg PE/(mol Zr center dot h) at 80 degrees C]. (c) 2005 Elsevier B.V. All rights reserved.
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E China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R China
Huang, JL
;
Lian, B
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E China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R China
Lian, B
;
Yong, L
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E China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R China
Yong, L
;
Qian, YL
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E China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R China
机构:
E China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R China
Huang, JL
;
Lian, B
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h-index: 0
机构:
E China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R China
Lian, B
;
Yong, L
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h-index: 0
机构:
E China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R China
Yong, L
;
Qian, YL
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h-index: 0
机构:
E China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Lab Organometall Chemn, Shanghai 200237, Peoples R China